Homolytic displacement at saturated carbon: synthesis of trichloroethylbenzenes
Abstract
Benzylcobaloximes react with bromotrichloromethane thermally and photochemically to give good yields of trichloroethylbenzenes; the reaction is believed to involve a chain sequence in which one of the propagation steps involves the homolytic displacement of cobaloxime(II) by attack of trichloromethyl radicals at the α-carbon.